Free Online SOAP Web Service Client — No Installation Required
The SUDTCore SOAP Client is a professional, browser-based SOAP API testing tool designed for enterprise developers. Test XML-based web services, send custom SOAP envelopes, and set SOAPAction headers — all without installing SoapUI, Wizdler, or any desktop software.
SOAP (Simple Object Access Protocol) remains the backbone of financial, healthcare, government, and legacy enterprise systems. Our tool lets you interact with these services instantly from any browser, anywhere.
Key Features
📜 Custom SOAP Envelopes
Write and edit full SOAP XML requests with syntax-aware editing. Support for SOAP 1.1 and 1.2 envelopes.
🏷️ SOAPAction Header
Set the mandatory SOAPAction HTTP header with a dedicated input field — no manual header management needed.
🔒 Secure Proxy
Requests are routed through our secure cloud infrastructure, bypassing CORS and mixed-content restrictions.
💾 Save & Organize
Save SOAP requests into collections organized by project and organization. Syncs across devices when signed in.
📊 XML Response Viewer
Inspect full XML responses, status codes, response time, and all HTTP headers in a clean interface.
🌐 Zero Installation
No downloads. No Java Runtime. No SoapUI. Just open in your browser and test SOAP services instantly.
Why Choose SUDTCore Over SoapUI?
- No installation — SoapUI requires 200MB+ download and Java runtime
- Instant access — Open the URL and start testing immediately
- No learning curve — Simple, intuitive interface for quick tests
- CORS bypass — Test any WSDL endpoint without browser restrictions
- Cross-platform — Works on Windows, Mac, Linux, tablets, and phones
- Collections — Save and organize SOAP requests like Postman
SECURE PROXY EXECUTION
Your SOAP XML payloads are processed in-memory only — never logged, never stored, never shared. API responses are never persisted. When you save a SOAP request, only the envelope template and endpoint are stored. Your data remains completely private and secure.
Frequently Asked Questions
Is this SOAP client really free?
Yes, 100% free. No sign-up required, no feature limits, no trial period. Use it for unlimited SOAP testing.
Does it support WSDL auto-discovery?
Currently you write the SOAP envelope manually. Enter your endpoint URL and paste your XML request — our proxy handles the rest.
Can I test services with WS-Security?
Yes. Include WS-Security headers in your SOAP envelope XML. Our proxy forwards them untouched to the endpoint.
Can I save my SOAP requests?
Yes. Organize SOAP envelopes into collections with projects and organizations. Sign in to sync across devices.
Why am I getting a CORS error when testing SOAP services?
Like REST, SOAP endpoints block cross-origin browser requests. We automatically route your payloads through our backend proxy to completely bypass browser CORS restrictions.
How do I pass basic authentication?
You can add custom HTTP headers in the 'Headers' tab, including Authorization headers with Basic Auth or Bearer tokens. They are forwarded securely.
When to use a SOAP Client?
- Legacy Systems Integration: Many enterprise ERM, CRMs, and financial backends still run exclusively on XML/SOAP.
- Government Gateways: Most official tax, identity, and compliance gateways mandate SOAP with strict WS-Security standards.
- Healthcare (HL7): Legacy medical record systems frequently expose SOAP services.
- Telecom provisioning: Network infrastructure control plane interfaces often use SOAP envelopes.